on the rare chance i actually get to fill it all the way, the gauge stays at full for a long time and then goes down evenly then when i get down to about a 1/4 it drops a little faster, but other than that it has always been about the same speed throughout. I had a problem with brake fluid not long ago, the light had been on for a long time and i put new fluid in and solved that problem, did something maybe happen with the brakes that is causing it to go down? my brakes still feel normal and it doesnt really feel like its dragging or anything..